Evidence map›Paper›PMID 25291496›Full record

ReviewJournal of cardiovascular pharmacology2014

Zinc and the prooxidant heart failure phenotype.

Nephertiti Efeovbokhan, Syamal K Bhattacharya, Robert A Ahokas, Yao Sun, Ramareddy V Guntaka, Ivan C Gerling, Karl T Weber

Open access · greenAbstract readReview
In one paragraph

Review in Journal of cardiovascular pharmacology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Contaminant Metals and Cardiovascular Health.Journal of cardiovascular development and disease · 2023
    Review
  7. Myocardial TRPC6-mediated ZnNature communications · 2022
    Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. The role of labile ZnMolecular and cellular biochemistry · 2021
    Review
  13. Zinc Deficiency as a Reversible Cause of Heart Failure.Texas Heart Institute journal · 2020
    Article
  14. Review
  15. Article
  16. Review
  17. Impact of Labile Zinc on Heart Function: From Physiology to Pathophysiology.International journal of molecular sciences · 2017
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 2 countries.

Nephertiti Efeovbokhan*Division of Cardiovascular Diseases, University of Tennessee Health Science Center, Memphis, TN; Departments of †Obstetrics and Gynecology; and ‡Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN; and §Division of Endocrinology, University of Tennessee Health Science Center, Memphis, TN.
Syamal K Bhattacharya
Robert A Ahokas
Yao Sun
Ramareddy V Guntaka
Ivan C Gerling
Karl T Weber
University of Tennessee Health Science Center · USBeijing Obstetrics and Gynecology Hospital · CN

Funding

Aldosteronism: An Immunostimulatory StateR01HL073043 · NHLBI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI WEBER, KARL T · 2004 to 2008
$1.8M
Recovery from Cachexia in Heart and Skeletal MuscleR01HL090867 · NHLBI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI WEBER, KARL T · 2008 to 2011
$1.5M
Regulatory Mechanisms of Oxidative Stress in Hypertensive Heart DiseaseR01HL096813 · NHLBI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI WEBER, KARL T · 2010 to 2013
$1.5M
NHLBI NIH HHS R01 HL073043NHLBI NIH HHS R01HL073043NHLBI NIH HHS R01 HL090867NHLBI NIH HHS R01HL090867NHLBI NIH HHS R01 HL096813NHLBI NIH HHS R01HL096813
6 · The paper itself

Abstract

Neurohormonal activation with attendant aldosteronism contributes to the clinical appearance of congestive heart failure (CHF). Aldosteronism is intrinsically coupled to Zn and Ca dyshomeostasis, in which consequent hypozincemia compromises Zn homeostasis and Zn-based antioxidant defenses that contribute to the CHF prooxidant phenotype. Ionized hypocalcemia leads to secondary hyperparathyroidism with parathyroid hormone-mediated Ca overloading of diverse cells, including cardiomyocytes. When mitochondrial Ca overload exceeds a threshold, myocyte necrosis follows. The reciprocal regulation involving cytosolic free [Zn]i as antioxidant and [Ca]i as prooxidant can be uncoupled in favor of Zn-based antioxidant defenses. Increased [Zn]i acts as a multifaceted antioxidant by: (1) inhibiting Ca entry through L-type channels and hence cardioprotectant from the Ca-driven mitochondriocentric signal-transducer effector pathway to nonischemic necrosis, (2) serving as catalytic regulator of Cu/Zn-superoxide dismutase, and (3) activating its cytosolic sensor, metal-responsive transcription factor that regulates the expression of relevant antioxidant defense genes. Albeit present in subnanomolar range, increased cytosolic free [Zn]i enhances antioxidant capacity that confers cardioprotection. It can be achieved exogenously by ZnSO4 supplementation or endogenously using a β3-receptor agonist (eg, nebivolol) that enhances NO generation to release inactive cytosolic Zn bound to metallothionein. By recognizing the pathophysiologic relevance of Zn dyshomeostasis in the prooxidant CHF phenotype and by exploiting the pharmacophysiologic potential of [Zn]i as antioxidant, vulnerable cardiomyocytes under assault from neurohormonal activation can be protected and the myocardium spared from adverse structural remodeling.

Indexed as

AnimalsAntioxidantsCalciumCardiotonic AgentsHeart FailureHomeostasisHumansNecrosisOxidative StressZincAntioxidantsCalciumCardiotonic AgentsZinc

Identifiers

PMID25291496
PMCPMC4189835
OpenAlexW2332373406

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.